3, maybe 4. I definitely think he can nab one of USO or WTF finally(likely the latter - if he doesnt meet Indoorerer, though even then, of the top 4 I give AM the best chance against Rog indoors)
And throw in a couple of masters (Toronto, Shanghai/Paris?) and an Asian 500, likely 3 titles with the 4th if he gets one of the 2 big ones.
But everything will dependent on whether or not he has usual post Slam final loss slump. If he does, god forbid, the year will be more or less over by the time he recovers